{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15978",
    "entityType": "User",
    "nonce": "0x8f62753b93583642e12df56196d02b8a46b4cc495b0fe509d9d586b1c05bfa2b",
    "signature": "0x1ea3136cf5c87c816261bed9d3e5558be7a9665dbfe6a72986e50693046b8aa647115a0b0c7c631bdde42457d43845231dbdbdda322d6a28e67c6d2119f72b3d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}